Upcoming Marathons within 100 miles of Greeley, CO on Weekends
City Location
Featured Listing
1. Boulderthon: Downtown Boulder Marathon
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Sep 28, 2025Sunday
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26.2M, 13.1M, 10K, 5K run | kids run
More Information
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Boulder, CO
Boulder County, CO
1. BINGO! Trail Party
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Nov 9, 2024Saturday
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50M, 50K, 26.2M, 13.1M, 10K trail run
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Byers, CO
55 miles point to pointArapahoe County, CO
2. Winter's End Snowshoe Races
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Mar 8, 2025Saturday
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26.2M, 16M, 8M, 2M trail run
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Granby, CO
69 miles point to pointGrand County, CO
3. Runs With Scissors Races
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Apr 26, 2025Saturday
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50K, 26.2M, 13.1M run
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Brighton, CO
31 miles point to pointAdams County, CO
4. Colorado Marathon
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May 4, 2025Sunday
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26.2M, 13.1M, 10K, 5K run | 26.2M relay
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Boston Marathon Qualifier
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Fort Collins, CO
23 miles point to pointLarimer County, CO
5. Denver Colfax Marathon
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May 18, 2025Sunday
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26.2M, 13.1M, 10M run | 26.2M relay
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Boston Marathon Qualifier
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Denver, CO
50 miles point to pointDenver County, CO
6. Fall Equinox Marathon
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Sep 21, 2025Sunday
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26.2M, 13.1M, 5M run
Virtual OptionMore Information
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Boston Marathon Qualifier
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Fort Collins, CO
23 miles point to pointLarimer County, CO
7. Boulderthon: Downtown Boulder Marathon
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Sep 28, 2025Sunday
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26.2M, 13.1M, 10K, 5K run | kids run
More Information
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Boulder, CO
41 miles point to pointBoulder County, CO
8. Breckenridge Road Marathon
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Oct 11, 2025Saturday
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26.2M, 13.1M, 10K run | kids run
More Information
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Boston Marathon Qualifier
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Breckenridge, CO
96 miles point to pointSummit County, CO
For the love of all that Is good And moisture wicking...
Though we Try To be accurate And On top Of things... Race details can change When we aren't lookin. And once in a while we simply make a mistake.
ALWAYS visit the race's website for the most complete and accurate race information.
ALWAYS visit the race's website for the most complete and accurate race information.